Additive methods for producing crowns and bridges are already being used in dental technology.

Even the most complex hydraulic or pneumatic valves can be created flexibly with the minimum use of material.

Functional prototypes can be built overnight using series production materials. Development times are reduced by weeks or even months.

If there were any questions whether additive manufacturing in the metal sector could achieve the leap into industrial implementation, any doubts were answered at Formnext in November 2017. The future is almost within reach – also thanks to DMG MORI!

Various providers exhibited new machines and concepts at the fair in Frankfurt, in particular trendsetting machines and exhibits for future manufacturing. What also became clear when walking through the fair halls: as one of just a few manufacturers in this field, DMG MORI presented visitors with a large spectrum of options for further expansion of additive manufacturing.

As an additive pioneer, the company used integrated process chains to show manufacturers its process competence with both powder bed and powder nozzle technology. The starting point for this additive revolution is an extremely fine powder material with grain diameters of just a few μm.

Additive Manufacturing made by DMG MORI

With regard to systems, DMG MORI offers customers from one source two of the most significant current additive manufacturing methods for metal components. These methods have three continuous process chains, each based on machine technology and software, for powder bed and powder nozzle respectively.

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Additive Manufacturing has revolutionised metalworking

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Additive Manufacturing with Selective Laser Melting

Control - Workflow SLM technology – Progress of digitization

LASERTEC 3D hybrid: Finished part quality in one setup

DMG MORI successfully entered the market four years ago with machines in the LASERTEC 3D hybrid series, which combine laser deposition welding and subtractive machining. This concept is used both in the LASERTEC 65 3D hybrid with additional 5-axis milling and in the LASERTEC 4300 3D hybrid combining laser deposition welding and 6-axis turning/milling. Both machines are designed for manufacturing comparatively large parts such as complex turbine components.

Additive team player for the manufacturing industry

DMG MORI has now uniquely upgraded its portfolio with these LASERTEC 3D hybrid machines, developing a complete range for additive manufacturing. While the LASERTEC 65 3D has been designed for pure laser deposition welding of larger parts, the LASERTEC SLMseries has expanded the product range for the powder bed method using selective laser melting. As additive team players, these two innovations combined with high-tech machines in the DMG MORI machining portfolio offer numerous options for full industrial processing.

LASERTEC SLM: Revolutionary powder machine

The LASERTEC SLM machines are the current highlight. In the powder bed method, a thin layer of powder is applied to a lowering platform. A continuous laser beam then melts the applied powder at the programmed positions in a cycle time of 10 μs.

Once all positions in one layer have been processed, the platform lowers according to the required layer thickness (between 20 and 100 μm). This process is repeated until the component has been fully built. When the completed workpiece is released from the powder bed, any excess powder falls through a mesh into a container for reuse.

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Additive Manufacturing has revolutionised metalworking

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LASERTEC 65 3D hybrid

SLM principle - Powder bed functional principle

The LASERTEC 30 SLM offers a build volume of 300 × 300 × 300 mm within which any workpiece shapes can be additively manufactured.

Inert gas (argon)

Recoaters

Powder containers

Lowering work platform

SLM component

Powder bed

Laser beam

Holistic software solution for the powder bed method

DMG MORI is also offering a comprehensive software solution with CELOSSLM for CAM programming and machine control in one package and with a standardised user interface. The tailored and standardised user interface can be used to program components – irrespective of their complexity – with minimum outlay and transfer the data immediately to the machine. Minor modifications can be made without retrograde steps and with the same user convenience directly on the machine control.

At the control level, CELOS SLM offers an adaptive exposure strategy that is automatically generated before the process starts. It ensures that the energy input into the component is so precisely controlled that no energy is wasted during the entire build process at scanning rates of approx. 20μs. All process- relevant parameters such as scanning speed, laser output and focus diameter are included in the programming process. Deformation and stress generation in the material are therefore prevented and even very thin horizontal or vertical walls can be safely generated.

Quick-change module for powder change

A new powder module provides flexibility for order planning and high usage rates of the LASERTEC SLMsystems. When changing materials, the work area must be carefully cleaned after the powder module has been undocked and docked so as to prevent entry of foreign material into the closed powder circuit. This has reduced changeover intervals between 2 powders from approximately 1.5 days to around 2 hours today and enables economic processing of different materials.

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Additive Manufacturing has revolutionised metalworking

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